The shooting happened around 3:25 a.m. at a Waffle House in the Antioch neighborhood of Nashville. A patron wrestled away the gunman’s rifle, the Metropolitan Nashville Police Department said on Twitter.

Three people died at the scene and one person was declared dead at Vanderbilt University Medical Center, the police said.

Jennifer Wetzel, a spokeswoman for the medical center, said one wounded victim was in critical condition and the other was in critical but stable condition.

Two other victims were treated for minor injuries and discharged from TriStar Southern Hills Medical Center in Nashville, said Katie Radel, a spokeswoman there.

The police said they had identified a vehicle registered to a 29-year-old Illinois man they described as a person of interest and said he was later seen wearing black pants and no shirt.

Twenty-nine year-old Travis Reinking of Illinois is being sought as a person of interest in the shooting.

BREAKING: Travis Reinking, 29, of Morton, IL, is person of interest in Waffle House shooting. Vehicle the gunman arrived in is registered to him. Gunman last seen walking south on Murfreesboro Pike. He shed is coat and is nude. See Reinking? Pls call 615-862-8600 immediately. pic.twitter.com/duoWCo5fC0